Truck.



No. 726,406. PATENTED APR. 28, 19013.

H. H. GOLESTOGK.

TRUCK.

APPLICATION FILED SEPT. 7. 1901.

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N0. 726,406. PATENTED APR. 28, 1903.

H. H. COLESTOGK.

TRUCK.

APPLICATION FILED 52M. 7. 1901. 110 MODEL.

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HARRY H. OOLESTOOK, OF ST. PAUL, MINNESOTA, ASSIGNOR TO MALLEABLE IRON TRUCK COMPANY, OF ST. PAUL, MINNESOTA, A CORPORATION OF MINNESOTA.

TEUGK.

$PECIFI JATKOT forming part of Letters Patent No. 726,406, dated April 28, 1903.

Application filed September 7, 1901. Serial No. 74,667. (No model.)

To all whom it may concern:

Be it known that l, HARRY H. GoLEsrooK, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented certain new and useful Improvements in Trucks, of which the following is a specification.

My invention relates to improvements in trucks, its object being particularly to proto vide a truck which can be used either as an ordinary platform or warehouse truck or as a carrying-truck; and it consists in the features of construction and combination hereinafter specifically described and claimed. In the accompanying drawings, forming part of this specification, Figure 1 is a side elevation of my improved truck shown provided with an attachment by which it can be used as a carrying-truck. Fig. 2 isa top plan of the same. Fig. 3 is a front elevation. Fig. 4 is a partial sectional view of the truck, illustrating the construction and support of the rear caster. Fig. 5 is a detail showing the method of securing the attachment E to the truck-frame. Fig. 6 is a similar view illustrating a modified construction. Fig. 7 is a side elevation of one of the forward corners of the truck with the carrying attachment in position. Fig. 8 is an end elevation 0 of the opposite corner with said attachment removed, and Fig. 9 is a section of the end of one side of said attachment on line at m of Fig. 7. In the drawings, A represents the body of the truck, which is preferably formed of a single casting.

2 represents the side bars, and 3 connecting cross-bars, of the truck-frame. The rear end of the truck is formed with the down- 0 weirdly-projecting handles 31 and the forward end with the upwardly-projecting nose 4:. Centrally connecting two of the cross-bars 3 is the web 5, serving as a support for the easter B. The caster is formed with a spindle 5 6, projecting through an opening in the web 5 and secured therein by a headed bolt 7, threaded into the top of the caster-fork. The wings of the caster-fork are formed with corresponding slots 8, through which project the ends of the axle 9 of the wheel 10. The lower end 11 of each slot is upwardly turned and the upper end 32 downwardly turned, as illustrated best in Fig. 1. Thus when the wheel is at the lower end of the slots it will rest upon the floor, as shown in Fig. 1, and when carried to the upper ends of the slots it will rest in the ends 32 of the slots out of contact with the floor.

At the forward end of the truck is a removable eXtension-frame O, comprising side bars 14 and cross-bars 15. The side bars 14 are formed at their upper ends with forwardlyprojecting handles 16 and at their lower ends with rearwardly-extending arms 17, standing in alinement with the side bars 2 of the truckframe and constructed to fit closely and seat for substantially their entire length within longitudinal openings 12 in the forward ends of the body of the side bars of the truck frame, so as to have a firm bearing therein. This construction enables the extensionframe to sustain great weight and avoids shearing strain by retaining the arms 17 in position, and there are no exposed clips to stand in the way and to become loosened and injured. The arms 17 when inserted into the openings 12 are automatically locked therein by springs D, secured upon the outer side of the arms 17 by bolts 18. Each spring is formed with an outward projection 20, adapted when the arms are inserted into the openings 12 to project through a hole 13 in the side of the side bar 2, as shown in Fig. 7. The free end of the spring D is connected with the arm 17 by a bolt 19, which allows a limited play to the spring and serves as a means of adjusting the tension thereof.

Supported in the forward end of the truckframe are the ordinary carrying-wheels 21. The rear end of the frame is provided-with 9o hollow legs 22, in the lower ends of which are preferably fitted rubber-cushions 23, the upper ends being receptacles for stays. (Not shown.)

E represents an attachment secured to the 5 rear end of the truck-frame. This attachment consists of side bars 24.- and cross-bars 25. The lower end of each side bar is formed with flanges 26 and 27, adapted to stand alongside the inner and outer faces, respectively,

of the side bars 2 of the truck-frame. A thumb-screw 28 is threaded through each flange 27 and bears against the adjacent side bar 2.

In Fig. 6 is illustrated a modified construction. In this form a spring 29 is secured to the outer side of each side bar 24 in lieu of the flange 27, the lower end 30 being adapted to spring underneath the edge of the side bar 2 of the truck-frame, as shown in Fig. 6.

I claim 1. In a truck, in combination, a base-frame comprising side bars and connecting crossbars, the side bars being formed with longitudinal openings in their forward ends, and

a removable extension-frame having rearwardly-extending arms constructed to fit closely within said openings and have a firm bearing therein, and spring means for automatically locking said arms in the openings when inserted therein.

2. In a truck of the class described, the combination with a base-frame, of a caster having downwardly-projecting wings, said wings being provided with corresponding oppositely-curved slots, and a Wheel arranged between said wings and provided with an axle projecting through said slots.

In testimony whereof I aflix my signature in presence of two witnesses.

HARRY H. COLESTOCK.

Witnesses:

H. S. JOHNSON, EMILY EASTMAN. 

